dave/openttd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

(svn r11962) -Cleanup: OPF is no longer used to update signals

Browse Source
This commit is contained in:
smatz
2008-01-23 17:30:28 +00:00
parent 4a3e135086
commit d6eaf1a11a
5 changed files with 40 additions and 91 deletions
Download Patch File Download Diff File Expand all files Collapse all files

120
src/pathfind.cpp
View File

@@ -230,13 +230,42 @@ static uint SkipToEndOfTunnel(TrackPathFinder* tpf, TileIndex tile, DiagDirectio
return flotr.tile;
}
static void TPFMode1(TrackPathFinder* tpf, TileIndex tile, DiagDirection direction);
/** Most code of the "Normal" case of TPF Mode 1; for signals special tricks
* have to be done, but those happen in TPFMode1; this is just to prevent
* gotos ;). */
static inline void TPFMode1_NormalCase(TrackPathFinder* tpf, TileIndex tile, TileIndex tile_org, DiagDirection direction)
static void TPFMode1(TrackPathFinder* tpf, TileIndex tile, DiagDirection direction)
{
TileIndex tile_org = tile;
if (IsTileType(tile, MP_TUNNELBRIDGE)) {
if (IsTunnel(tile)) {
if (GetTunnelBridgeTransportType(tile) != tpf->tracktype) {
return;
}
/* Only skip through the tunnel if heading inwards. We can
* be headed outwards if our starting position was in a
* tunnel and we're pathfinding backwards */
if (GetTunnelBridgeDirection(tile) == direction) {
tile = SkipToEndOfTunnel(tpf, tile, direction);
} else if (GetTunnelBridgeDirection(tile) != ReverseDiagDir(direction)) {
/* We don't support moving through the sides of a tunnel
* entrance :-) */
return;
}
} else { // IsBridge(tile)
TileIndex tile_end;
if (GetTunnelBridgeDirection(tile) != direction ||
GetTunnelBridgeTransportType(tile) != tpf->tracktype) {
return;
}
//fprintf(stderr, "%s: Planning over bridge\n", __func__);
// TODO doesn't work - WHAT doesn't work?
TPFSetTileBit(tpf, tile, 14);
tile_end = GetOtherBridgeEnd(tile);
tpf->rd.cur_length += DistanceManhattan(tile, tile_end);
tile = tile_end;
TPFSetTileBit(tpf, tile, 14);
}
}
tile += TileOffsByDiagDir(direction);
/* Check in case of rail if the owner is the same */
if (tpf->tracktype == TRANSPORT_RAIL) {
/* don't enter train depot from the back */
@@ -294,84 +323,6 @@ static inline void TPFMode1_NormalCase(TrackPathFinder* tpf, TileIndex tile, Til
}
}
static void TPFMode1(TrackPathFinder* tpf, TileIndex tile, DiagDirection direction)
{
TileIndex tile_org = tile;
if (IsTileType(tile, MP_TUNNELBRIDGE)) {
if (IsTunnel(tile)) {
if (GetTunnelBridgeTransportType(tile) != tpf->tracktype) {
return;
}
/* Only skip through the tunnel if heading inwards. We can
* be headed outwards if our starting position was in a
* tunnel and we're pathfinding backwards */
if (GetTunnelBridgeDirection(tile) == direction) {
tile = SkipToEndOfTunnel(tpf, tile, direction);
} else if (GetTunnelBridgeDirection(tile) != ReverseDiagDir(direction)) {
/* We don't support moving through the sides of a tunnel
* entrance :-) */
return;
}
} else { // IsBridge(tile)
TileIndex tile_end;
if (GetTunnelBridgeDirection(tile) != direction ||
GetTunnelBridgeTransportType(tile) != tpf->tracktype) {
return;
}
//fprintf(stderr, "%s: Planning over bridge\n", __func__);
// TODO doesn't work - WHAT doesn't work?
TPFSetTileBit(tpf, tile, 14);
tile_end = GetOtherBridgeEnd(tile);
tpf->rd.cur_length += DistanceManhattan(tile, tile_end);
tile = tile_end;
TPFSetTileBit(tpf, tile, 14);
}
}
tile += TileOffsByDiagDir(direction);
TPFMode1_NormalCase(tpf, tile, tile_org, direction);
/* the next is only used when signals are checked.
* seems to go in 2 directions simultaneously */
/* if i can get rid of this, tail end recursion can be used to minimize
* stack space dramatically. */
/* If we are doing signal setting, we must reverse at evere tile, so we
* iterate all the tracks in a signal block, even when a normal train would
* not reach it (for example, when two lines merge */
if (tpf->hasbit_13)
return;
direction = ReverseDiagDir(direction);
tile += TileOffsByDiagDir(direction);
uint bits = GetTileTrackStatus(tile, tpf->tracktype, tpf->sub_type);
bits |= (bits >> 8);
if ( (byte)bits != tpf->var2) {
bits &= _bits_mask[direction];
}
bits &= 0xBF;
if (bits == 0)
return;
do {
uint i = FIND_FIRST_BIT(bits);
bits = KillFirstBit(bits);
tpf->the_dir = (Trackdir)((_otherdir_mask[direction] & (byte)(1 << i)) ? (i + 8) : i);
RememberData rd = tpf->rd;
if (TPFSetTileBit(tpf, tile, tpf->the_dir) &&
!tpf->enum_proc(tile, tpf->userdata, tpf->the_dir, tpf->rd.cur_length, &tpf->rd.pft_var6) ) {
TPFMode1(tpf, tile, _tpf_new_direction[tpf->the_dir]);
}
tpf->rd = rd;
} while (bits != 0);
}
void FollowTrack(TileIndex tile, uint16 flags, uint sub_type, DiagDirection direction, TPFEnumProc *enum_proc, TPFAfterProc *after_proc, void *data)
{
TrackPathFinder tpf;
@@ -391,7 +342,6 @@ void FollowTrack(TileIndex tile, uint16 flags, uint sub_type, DiagDirection dire
tpf.var2 = HasBit(flags, 15) ? 0x43 : 0xFF; // 0x8000
tpf.disable_tile_hash = HasBit(flags, 12); // 0x1000
tpf.hasbit_13 = HasBit(flags, 13); // 0x2000
tpf.tracktype = (TransportType)(flags & 0xFF);